I am migrating from ArcGIS server backend to open source technologies.
I have about 100 map services (~300 GB data) each with 100+ layers. I also have a web application where the user has to have a ...

Is there an opensource Alternative to GIS softwares for telecommunication like GE Smallworld PNI and Intergraph? I am basically looking for cheaper alternates, so some cheap commercial alternate will ...

Are there any open source command line or GUI tools available for creating RPF (CADRG/ECRG) and CIB files? I know GDAL/OGDI can be used to read RPF files, but are there any tools out there that create ...

I have ArcGIS 10.1 and am working on a project involving extraction of vegetation and building classes from LIDAR (unclassified) data and aerial imagery (resolution 30x30cm). I have managed to extract ...

I am looking to create 3D terrain from a contour map that I have (originally inside a PDF). The contour lines are able to be viewed as paths in Adobe Illustrator. There are two types of lines: 7m and ...

Any open source recommendations for exporting from a spatial database (in this case SQLServer, but doesn't have to be) to KML?
Currently, I need to setup an automated unattended export of a dataset ...

I am new to using Openstreetmap data and PostGIS database. I learned how to use osm2pgsql and transferred osm data for a small city to PostGIS database and worked fine. The problem is that when I try ...

I'm new to mapping and m looking to self-host some PBF-based vector tile files, mainly for a hybrid mobile app (Phonegap, HTML5, Openlayers or Mapbox-GL-JS).
My question is, if I need to generate or ...

I am working on modeling surface run-off (in ArcGIS 10.2) due to a rain event (e.g., 5 year rain for a duration of 30 mins.) over an approx. area of 30 km2 for which I have a DEM and necessary soil as ...

I am running a Master's project researching Greater prairie-chicken nest and brood survival. Some of my intended covariates include local vegetation measures using digital imagery. I would like to use ...

I'm trying to work out whether there is a way to do something similar to a ZTV/Visibility analysis but only include the cells from which the point (with 50m OFFSETA/height) would be visible above the ...

I have fish tracking data from a river. The data include positions, times and tag ids. Time interval between positions may be several days. I would like to create a polyline track for each fish tag ...

could you suggest me a client for editing a shapefile in a webgis done with geoserver?
My idea is that one accessing via web can change shape geospatial data and as a result the shapefile stored in ...

I would like to start developing a GIS web application for mapping and editing vector data with attributes. I'm familiar with Desktop GIS (ArcGIS, QGIS) and basic SQL. I've also little experience with ...

Recently I used OGR to convert an ESRI E00 format file to shapefiles. I am dealing with vector data, many polygon features per file. I was dismayed to find that none of the resulting shapefiles(you ...

Hi QGIS experts out there, I have an very hard task I want to do in QGIS (or another open source GIS program).
I have point data for river bathymetry (depth). I have been creating digital elevation ...

I have saved a html file from Cesium SandCastle live editor, but I am not able to run that file on a web browser afterwards, even after loading all the JavaScript files correctly.
How to make it run ...

I am working on sea surface temperature satellite images and looking for delineating gradients in open source on the basis of temperature. Is there any tool like Cayula and Cornillon front detection ...

Currently I have some data in PostGIS. I want to implement the following: users will make a request via web, with parameters like location, scale, layers to be displayed, etc. and I need to provide ...

I have a ESRI file in geodatabase format (v9.3). I intend to use this in a non-commercial application. I think I will have to convert it into a open standard since I am confused if ArcGIS online would ...

I am new to open source Web GIS and have done some self training about the basics of Geoserver, PostGIS and Openlayers. Right now I am in a rush to set up a web site for up to 100 people to access it ...

I need a Free (i.e. Open Source) implementation of the Polynomial Approximation with Exponential Kernel (PAEK) algorithm, preferably in C, C++, Python, Julia or R. The algorithm is one of the methods ...

Is there a freeware alternative to Tableau 8? One that allows me to use my own data (shapefiles)?
Tableau is a comercial software that permits you to create a dashboard were you can show at same time ...

I have written many programs for reading and writing various types of spatial data in the past but I must admit that the GeoTIFF format has often gotten the better of me. It's such a flexible format ...